SLING ANGLE CHARTS
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EFFECTS OF SLING ANGLES
SLING LIFTING CAPACITIES ARE AFFECTED BY ANGLE OF LIFT (ROUND SLING TO LOAD ANGLE)
MEASURED FROM THE HORIZONTAL, WHEN USED WITH MULTI - LEGGED ROUND SLINGS OR
CHOKER / BASKET HITCHES . T O DETERMINE THE ACTUAL CAPACITY AT A GIVEN ANGLE OF
LIFT, MULTIPLY THE ORIGINAL SLING RATING BY THE APPROPRIATE ANGLE FACTOR SHOWN.
SINGLE ANGLE CHART
ANGLE IN DEGREES
FROM HORIZONTAL
ANGLE
FACTOR
90°
85°
80°
75°
70°
65°
60°
55°
50°
45°
40°
35°
30°
1.000
0.996
0.985
0.966
0.940
0.906
0.866
0.819
0.766
0.707
0.643
0.574
0.500
EXAMPLE: A SIZE 1 (PURPLE) ROUND SLING IS BEING USED TO LIFT A LOAD IN A BASKET
HITCH AT A 60 DEGREE ANGLE. IT HAS A RATED CAPACITY OF 2,600 LBS. IN A VERTICAL
HITCH, AND 5,200 LBS. IN A BASKET.
ANSWER: THE ANGLE FACTOR FOR 60 DEGREES IS .866. THE LIFTING CAPACITY FOR THIS
SLING AT 60 DEGREES IN A BASKET HITCH IS:
(5,200 LBS.) X (.866 ANGLE FACTOR) = 4,500 LBS.
THE FOLLOWING ILLUSTRATES THE EFFECT OF SEVERAL DIFFERENT SLING ANGLES.
30°
45°
60°
90°
4500
3675
2600
5200
LBS
LBS
LBS
LBS
CHOKER HITCH ANGLE
WHEN A CHOKER HITCH IS USED, THE CHOKER HITCH RATING IS AFFECTED BY THE CHOKER
120 DEGREES. THE CHOKER HITCH RATING
SHOULD BE MULTIPLIED BY THE CHOKE ANGLE FACTOR AS SHOWN BELOW.
ANGLE FOR CHOKE ANGLES OF LESS THAN
POINT OF CHOKE
ANGLE OF CHOKE
CHOKER HITCH ANGLE CHART
ANGLE OF CHOKE
(DEGREES)
CHOKE ANGLE
FACTOR
120° - 180°
105° - 120°
90° - 105°
1.00
0.93
0.87
LOAD
PROTECTION
ANGLE OF CHOKE
F.O.B. WAREHOUSE
NYLON & POLYESTER WEBBING SLINGS • JACOB & SOLAS LADDERS • MANILA & SYNTHETIC ROPE & SPLICING • CARGO & SAFETY NETS
POLYESTER ROUND SLINGS • DIRT SLINGS • TIEDOWN STRAPS & EQUIPMENT • MARINE & INDUSTRIAL RIGGING EQUIPMENT